Patents Assigned to Arch Chemicals, Inc.
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Patent number: 7674785Abstract: Disclosed are topical compositions for the treatment of microbial infections on the skin or scalp which include a polyvalent metal salt of pyrithione and include a metal ion source. Also disclosed are methods for treating microbial infections of the skin or scalp using such compositions.Type: GrantFiled: December 8, 2005Date of Patent: March 9, 2010Assignees: The Procter & Gamble Company, Arch Chemicals, Inc.Inventors: David Francis Gavin, Anthony Raymond Marchetta, John Daniel Nelson, Jr., George Polson, James Robert Schwartz, Patricia Aileen Turley
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Patent number: 7658844Abstract: A chemical feeder for dissolving chemical tablets includes a housing and a plurality of tapered pedestals positioned in the housing for supporting the chemical tablet as the tablet is dissolved by liquid flowing through the feeder. The housing also includes a cup configured to receive a cartridge for holding the tablet; the cup includes inlet and outlet ports for the liquid. The cartridge includes a plate at its lower end; the pedestals are formed on its interior surface. Each pedestal may have a pencil-point shape. When the chemical tablet is installed in the cartridge and the cartridge is installed in the cup, the tapered pedestals support the chemical tablet and thereby expose an underside of the tablet to the liquid. The tablet is immersed in the liquid according to the height of the pedestal; the dissolution rate of the tablet thus corresponds to the height of the pedestals.Type: GrantFiled: May 28, 2008Date of Patent: February 9, 2010Assignee: Arch Chemicals, Inc.Inventor: David W. Blanchette
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Publication number: 20090317486Abstract: A composition for the treatment of a liquid, particularly a body of water, such as a swimming pool, spa, or the like. The composition includes calcium hypochlorite, a water soluble zinc salt for controlling algae, and sodium aluminate as an agglomerating agent that may safely be combined with said calcium hypochlorite and said zinc salt. A floating chemical dispenser for containing and dispensing chemicals to treat a body of water. The dispenser includes an upper end float, a container adapted to contain chemicals, the container removably joined with the upper end float, and a free end float joined with the container. The free end float is configured so that a central axis of the container and upper end float is not substantially orthogonal to a surface of the water.Type: ApplicationFiled: August 26, 2009Publication date: December 24, 2009Applicant: ARCH CHEMICALS, INC.Inventors: Peter Kenneth Hodgetts, Richard M. Mullins
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Patent number: 7623241Abstract: A method of producing a finish for a paper substrate, wherein the finish provides the paper substrate with a color that matches the color of a target object. In accordance with the method, calculations are performed to determine the quantities of at least one group of colorants required to produce a semitransparent wood stain from a vehicle, wherein when the semitransparent wood stain is applied to the paper substrate, the paper substrate will have a color that matches the target object. The calculations are performed using reflectance measurements of the target object obtained using a spectrophotometer and previously obtained spectral data of the colorants as applied to a paper substrate. The colorants used to form the transparent or semitransparent wood stain do not include a white colorant or black-and-white masstone.Type: GrantFiled: April 17, 2007Date of Patent: November 24, 2009Assignee: Arch Chemicals, Inc.Inventors: Maurizio Brini, Barbara Bartolomei
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Patent number: 7575673Abstract: The invention relates to a method of treatment of bodies of water such as recreational pools, spas and hot tubs with maintenance doses of water treatment chemicals to achieve consistent sanitization and aesthetically pleasing levels of properties such as turbidity. The amount of the maintenance doses is based on the volume of water to be treated in order to achieve hygienic and clear water. The method can be automated for accurate, consistent and safe treatment of water such as found in swimming pools, spas or hot tubs.Type: GrantFiled: June 2, 2006Date of Patent: August 18, 2009Assignee: Arch Chemicals, Inc.Inventor: Michael J. Unhoch
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Patent number: 7544367Abstract: A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron-sized particles of pyrithione salts comprision a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.Type: GrantFiled: June 20, 2002Date of Patent: June 9, 2009Assignee: Arch Chemicals, Inc.Inventors: Saeed M. Mohseni, Charles W. Kaufman, David C. Beaty, John J. Jardas, George Polson
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Patent number: 7481873Abstract: Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 microns and a median particle size of from 0.2 to less than 0.5 microns. The dispersion is suitably employed as an antifouling additive for marine paints without risking worker exposure to copper pyrithione dust. Paints containing the small particle copper pyrithione exhibit improved antifouling performance in cold water, as compared to paint containing larger particle copper pyrithione.Type: GrantFiled: November 22, 2004Date of Patent: January 27, 2009Assignee: Arch Chemicals, Inc.Inventors: Craig Waldron, Robert J. Martin, Sonia R. Oberson, Christopher J. Bannon
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Patent number: 7455851Abstract: The present invention is directed to an antimicrobial composition, comprising pyrithione or a pyrithione complex; and a zinc or copper or silver source selected from the group consisting of zinc or copper or silver salts, oxides, hydroxides, sulfates, chlorides, metals, and combinations thereof; wherein the weight ratio of the zinc or copper or silver source to the pyrithione or the pyrithione complex is in the range from about 1:300 to about 50:1, and wherein the antimicrobial composition has an enhanced biocidal effect against a variety of free-living microorganisms or biofilms. Also disclosed is a method of inhibiting the growth of free-living microorganisms or biofilm utilizing the above antimicrobial composition, as well as use of such antimicrobial compositions in various products including fuels, fluids, lubricants, coatings, adhesives, sealants, elastomers, soaps, cosmetics, plastic or woven or non-woven fibers, pharmaceuticals, and as preservatives for the above products.Type: GrantFiled: June 22, 2000Date of Patent: November 25, 2008Assignee: Arch Chemicals, Inc.Inventors: John D. Nelson, Thomas J. Palys, Jon R. Geiger
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Patent number: 7435771Abstract: The present invention describes a composition for stabilizing a paint or paint base composition against viscosity change, gelation and agglomeration during formulation and storage. Illustratively, an antifouling paint or paint base composition is disclosed that contains a hydrolysable acrylate resin such as copper acrylate, zinc acrylate, or silyl acrylate, a metal salt of pyrithione, cuprous oxide, and a primary stabilizing agent selected from the group consisting of benzoic acid, hydroxypyridine, metal salts of benzoic acid, and hydroxypyridine, with the proviso that said composition is essentially free of 2-hydroxypyridine N-oxide, and is also essentially free of the sodium, zinc and copper salts of 2-hydroxypyridine-N-oxide.Type: GrantFiled: November 23, 2005Date of Patent: October 14, 2008Assignee: Arch Chemicals, Inc.Inventors: Deqing Lei, Craig Waldron, Micheal Davis
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Patent number: 7410938Abstract: A solid calcium hypochlorite composition comprising a mixture of: solid calcium hypochlorite; a scale-inhibiting effective amount of a primarily scale-inhibiting alkali metal phosphate; and an effective residue-dispersing amount of primarily residue-dispersing alkali metal phosphate.Type: GrantFiled: February 22, 2005Date of Patent: August 12, 2008Assignee: Arch Chemicals, Inc.Inventor: James P. Brennan
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Patent number: 7323119Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.Type: GrantFiled: October 26, 2005Date of Patent: January 29, 2008Assignee: Arch Chemicals, Inc.Inventors: Jayne Mallwitz, Robert C. Hire, Kiran B. Chandalia
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Patent number: 7273944Abstract: Provided are preservation formulations and methods, e.g., formulations for the preservation of wood. In particular, provided are methods for the production of copper monoethanolamine aqueous solutions from metallic copper and monoethanolamine.Type: GrantFiled: August 13, 2004Date of Patent: September 25, 2007Assignee: Arch Chemicals, Inc.Inventors: Eugene A. Pasek, Jayesh P. Patel, Susan M. Thomason, Eric W. Lummus, Kenneth E. Cogan
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Patent number: 7202287Abstract: The invention relates to a method for inhibiting the growth of microorganisms in a latex, especially a sterically stabilised or cationic stabilised latex and to a composition for use in the method comprising a polymeric biguanide and an isothiazolinone of the Formula (1). wherein: R is H, alkyl, cycloalkyl or aralkyl; and Y and Z each independently are H, halogen or C1-4-alkyl or Y and Z together with the carbon atoms to which they are attached form an optionally substituted 5 or 6 membered ring.Type: GrantFiled: October 5, 2001Date of Patent: April 10, 2007Assignees: Arch Chemicals, Inc., Arch UK Biocides LimitedInventors: Alexander Cornish, David John Hodge, Emerentiana Sianawati, Paula Louise McGeechan
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Patent number: 7143778Abstract: A feeder device for introducing treatment chemicals into a recirculating water stream from a swimming pool. The feeder device includes a housing having a top and bottom portions. A funnel-like hopper having sidewalls and an open bottom forms the inside of the top portion. A grid at least partially closes the open bottom of the hopper. The grid includes a top surface and a bottom surface. One or more chemicals such as chlorine are contained within the sidewalls of the hopper and supported by the top surface of the grid. A dissolving cup having a bottom surface and sidewalls is positioned within the bottom portion. The sidewalls include an opening or notch of a predetermined cross-sectional area formed therein. The bottom surface includes a center nozzle oriented vertically toward the bottom surface of the grid and an off-center nozzle adapted to direct the fluid horizontally in the dissolving cup.Type: GrantFiled: January 21, 2005Date of Patent: December 5, 2006Assignee: Arch Chemicals, Inc.Inventors: David W. Blanchette, Christopher M. Zetena, Michael Paloian, Anthony R. Orchard
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Patent number: 7122505Abstract: A stable aqueous concentrate comprising a polymeric biguanide, a chelating agent and a water-miscible organic solvent for controlling the growth of algae, fungi and pathogenic organisms in water.Type: GrantFiled: October 21, 1999Date of Patent: October 17, 2006Assignee: Arch Chemicals Inc.Inventor: Michael J Unhoch
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Patent number: 7094353Abstract: The invention relates to a method of treatment of bodies of water such as recreational pools, spas and hot tubs with maintenance doses of water treatment chemicals to achieve consistent sanitization and aesthetically pleasing levels of properties such as turbidity. The amount of the maintenance doses is based on the volume of water to be treated in order to achieve hygienic and clear water. The method can be automated for accurate, consistent and safe treatment of water such as found in swimming pools, spas or hot tubs.Type: GrantFiled: October 22, 2003Date of Patent: August 22, 2006Assignee: Arch Chemicals, Inc.Inventor: Michael J Unhoch
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Patent number: 7026308Abstract: Disclosed are topical compositions for the treatment of microbial infections on the skin or scalp which include a polyvalent metal salt of pyrithione and include a metal ion source. Also disclosed are methods for treating microbial infections of the skin or scalp using such compositions.Type: GrantFiled: June 22, 2000Date of Patent: April 11, 2006Assignees: The Procter & Gamble Company, Arch Chemicals, Inc.Inventors: David Francis Gavin, Anthony Raymond Marchetta, John Daniel Nelson, Jr., George Polson, James Robert Schwartz, Patricia Aileen Turley
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Patent number: 7008531Abstract: The present invention relates to a method of inhibiting the growth of killing algae, bacteria, yeast and/or fungi in a recirculating water system which comprises adding to the water a polymeric biguanide and an adjuvant of the Formula (1) or a salt thereof: wherein: R1 is an optionally substituted C8 to C12 or C18 to C22 alkyl group; and R2 and R3 each independently is H or optionally substituted C1-4-alkyl.Type: GrantFiled: September 22, 2004Date of Patent: March 7, 2006Assignee: Arch Chemicals Inc.Inventors: Michael Joseph Unhoch, Roy Dean Vore
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Patent number: 6994804Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.Type: GrantFiled: June 30, 2004Date of Patent: February 7, 2006Assignee: Arch Chemicals, Inc.Inventors: Jayne Mallwitz, Robert C. Hire, Kiran B. Chandalia
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Patent number: 6984398Abstract: A non-Division 5.1 Oxidizer tablet consisting essentially of a blend of hydrated calcium hypochlorite with magnesium sulfate heptahydrate, wherein the blend contains at least about 17% by weight of water based on the total weight of the blend and the dissolving rate of the tablet is less than 150 grams per day.Type: GrantFiled: April 2, 2003Date of Patent: January 10, 2006Assignee: Arch Chemicals, Inc.Inventors: James P. Brennan, Paul S. Loomis